http://www.yiibai.com/nodejs/
http://www.runoob.com/nodejs/nodejs-tutorial.html
http://www.runoob.com/nodejs/nodejs-http-server.html
http://www.runoob.com/nodejs/nodejs-install-setup.html
https://www.zhihu.com/question/21567720
http://www.jikexueyuan.com/course/nodejs/
https://www.douban.com/group/topic/35067110/
http://www.nodejs.net/
http://ourjs.com/detail/529ca5950cb6498814000005